油茶无性系'赣兴48'嫁接亲和性研究
Graft compatibility of Camellia oleifera clones'Ganxing 48'
叶甜甜 1查康 1幸伟年 1李进 1王玉娟1
作者信息
- 1. 江西省林业科学院,江西南昌 330013;江西省油茶种质资源保护与利用重点实验室,江西南昌 330013
- 折叠
摘要
以油茶优良无性系'赣兴48'为接穗,研究'白皮中子'和'赣永5'砧木与'赣兴48'苗期的嫁接亲和性.结果表明:2种砧木嫁接苗的成活率均高于90%,未有明显差异.'白皮中子'砧木嫁接苗的一年生根系生长表现优于'赣永5'砧木嫁接苗,但'赣永5'砧木嫁接苗地上部分及二年生根系生长较好,其中叶片数(4.01片)、二年生苗高(27.53 cm)及粗根体积(33.41 cm3)显著高于'白皮中子'砧木嫁接苗;并且其二年生根系生长参数的降幅较小.2种砧木嫁接苗可溶性糖和可溶性蛋白均呈先下降后上升变化,过氧化物酶活性在嫁接后20d达到峰值;嫁接后期,'白皮中子'砧木嫁接苗的过氧化物酶活性显著高于'赣永5'砧木嫁接苗.综合存活率、地上部分及根系生长情况,以'赣兴48'为接穗,'赣永5'的嫁接亲和性较'白皮中子'强.
Abstract
Selected'Ganxing 48',an excellent clone of Camellia as the scion,grafting compatibility was studied on C.oleifera'Ganxing 48'by using C.Baipizhongzi and'Ganyong 5'as rootstocks in the seedling stage.The results showed that:the survival rate of the two rootstock grafted seedlings was higher than 90%,and there was no significant difference.The annual root growth performance of Baipizhongzi rootstock grafted seedlings was better than that of'Ganyong 5'rootstock grafted seedlings,but the aboveground part and two-year-old root growth of'Ganyong 5'rootstock grafted seedlings were better,and the number of leaves(4.01),two-year-old seedling height(27.53 cm)and coarse root volume(33.41 cm3)were significantly higher than those of'Baipizhongzi'rootstock grafted seedlings.Moreover,the decrease in the growth parameters of the two-year-old root system was smaller.The contents of soluble sugar and soluble protein in the two rootstock grafted seedlings decreased first and then increased,and the peroxidase activities reached the peak at 20 days.In the late stage of grafting,the peroxidase activity of grafted seedlings of'Baipizhongzi'rootstock was significantly higher than that of grafted seedlings of'Ganyong 5'rootstock.Comprehensive survival rate,shoot parts and root growth,with'Ganxing 48'as the scion,'Ganyong 5'has a stronger grafting affinity than the'Baipizhongzi'.
关键词
油茶/砧木/嫁接苗/生长特性/生理指标Key words
Camellia oleifera/rootstocks/grafted seedlings/growth characteristics/phhysiological indices引用本文复制引用
基金项目
江西省重点研发计划项目(20203BBFL63056)
出版年
2024
NETL
NSTL
万方数据